SUN COMMUNITIES INC — Director's Dealing 2011

May 25, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: SUN COMMUNITIES INC (SUI)
CIK: 0000912593
Period of Report: 2011-05-23

Reporting Person: PIASECKI RONALD L (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-05-23	Common Stock, $0.01 Par Value	M	750	$34.92	Acquired	750	Direct
2011-05-23	Common Stock, $0.01 Par Value	M	750	$35.44	Acquired	1500	Direct
2011-05-23	Common Stock, $0.01 Par Value	M	1500	$35.05	Acquired	3000	Direct
2011-05-23	Common Stock, $0.01 Par Value	M	1500	$32.63	Acquired	4500	Direct
2011-05-23	Common Stock, $0.01 Par Value	M	1500	$29.91	Acquired	6000	Direct
2011-05-23	Common Stock, $0.01 Par Value	M	1000	$17.20	Acquired	7000	Direct
2011-05-23	Common Stock, $0.01 Par Value	M	500	$14.95	Acquired	7500	Direct
2011-05-23	Common Stock, $0.01 Par Value	S	100	$38.18	Disposed	7400	Direct
2011-05-23	Common Stock, $0.01 Par Value	S	100	$38.19	Disposed	7300	Direct
2011-05-23	Common Stock, $0.01 Par Value	S	100	$38.205	Disposed	7200	Direct
2011-05-23	Common Stock, $0.01 Par Value	S	100	$38.223	Disposed	7100	Direct
2011-05-23	Common Stock, $0.01 Par Value	S	100	$38.24	Disposed	7000	Direct
2011-05-23	Common Stock, $0.01 Par Value	S	200	$38.25	Disposed	6800	Direct
2011-05-23	Common Stock, $0.01 Par Value	S	100	$38.26	Disposed	6700	Direct
2011-05-23	Common Stock, $0.01 Par Value	S	100	$38.27	Disposed	6600	Direct
2011-05-23	Common Stock, $0.01 Par Value	S	100	$38.28	Disposed	6500	Direct
2011-05-23	Common Stock, $0.01 Par Value	S	500	$38.29	Disposed	6000	Direct
2011-05-23	Common Stock, $0.01 Par Value	S	100	$38.295	Disposed	5900	Direct
2011-05-23	Common Stock, $0.01 Par Value	S	600	$38.30	Disposed	5300	Direct
2011-05-23	Common Stock, $0.01 Par Value	S	100	$38.31	Disposed	5200	Direct
2011-05-23	Common Stock, $0.01 Par Value	S	100	$38.32	Disposed	5100	Direct
2011-05-23	Common Stock, $0.01 Par Value	S	100	$38.324	Disposed	5000	Direct
2011-05-23	Common Stock, $0.01 Par Value	S	41	$38.33	Disposed	4959	Direct
2011-05-23	Common Stock, $0.01 Par Value	S	360	$38.34	Disposed	4599	Direct
2011-05-23	Common Stock, $0.01 Par Value	S	36	$38.35	Disposed	4563	Direct
2011-05-23	Common Stock, $0.01 Par Value	S	500	$38.40	Disposed	4063	Direct
2011-05-23	Common Stock, $0.01 Par Value	S	100	$38.401	Disposed	3963	Direct
2011-05-23	Common Stock, $0.01 Par Value	S	200	$38.402	Disposed	3763	Direct
2011-05-23	Common Stock, $0.01 Par Value	S	400	$38.41	Disposed	3363	Direct
2011-05-23	Common Stock, $0.01 Par Value	S	100	$38.42	Disposed	3263	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-05-23	Stock Option	$34.92	M	250	Disposed	2011-12-31	Common Stock (250)	Direct
2011-05-23	Stock Option	$34.92	M	250	Disposed	2011-12-31	Common Stock (250)	Direct
2011-05-23	Stock Option	$34.92	M	250	Disposed	2011-12-31	Common Stock (250)	Direct
2011-05-23	Stock Option	$35.44	M	250	Disposed	2014-05-20	Common Stock (250)	Direct
2011-05-23	Stock Option	$35.44	M	250	Disposed	2014-05-20	Common Stock (250)	Direct
2011-05-23	Stock Option	$35.44	M	250	Disposed	2014-05-20	Common Stock (250)	Direct
2011-05-23	Stock Option	$35.05	M	500	Disposed	2015-05-24	Common Stock (500)	Direct
2011-05-23	Stock Option	$35.05	M	500	Disposed	2015-05-24	Common Stock (500)	Direct
2011-05-23	Stock Option	$35.05	M	500	Disposed	2010-05-24	Common Stock (500)	Direct
2011-05-23	Stock Option	$32.63	M	500	Disposed	2016-05-25	Common Stock (500)	Direct
2011-05-23	Stock Option	$32.63	M	500	Disposed	2016-05-25	Common Stock (500)	Direct
2011-05-23	Stock Option	$32.63	M	500	Disposed	2016-05-25	Common Stock (500)	Direct
2011-05-23	Stock Option	$29.91	M	500	Disposed	2017-05-23	Common Stock (500)	Direct
2011-05-23	Stock Option	$29.91	M	500	Disposed	2017-05-23	Common Stock (500)	Direct
2011-05-23	Stock Option	$29.91	M	500	Disposed	2017-05-23	Common Stock (500)	Direct
2011-05-23	Stock Option	$17.20	M	500	Disposed	2018-07-30	Common Stock (500)	Direct
2011-05-23	Stock Option	$17.20	M	500	Disposed	2018-07-30	Common Stock (500)	Direct
2011-05-23	Stock Option	$14.95	M	500	Disposed	2019-07-29	Common Stock (500)	Direct

Footnotes

F1: Converts to common stock on a one-for-one basis.